You can create, modify, or delete Oracle FS System volume groups in Oracle Enterprise Manager with the Oracle Enterprise Manager for Flash Storage Systems.
Volume groups enable you to organize related logical volumes (LUNs) into groups to manage the volume groups together rather than individually. You can also specify parent-child relationships between volume groups to create group hierarchies.
When you create a volume group, you specify a name and a capacity for the group. Once you create a volume group, you can add LUNs to the group by specifying the volume group name in the Quality of Service (QoS) settings for each LUN.
As your needs change, you can change the name or capacity of an existing volume group, or you can change which LUNs belong to the group by modifying the LUN QoS settings. You can also delete a volume group that is no longer needed, but you need to reassign the LUNs to a different volume group before you delete it.